Head - Arteries Flashcards
What are the two main arteries supplying the head?
1) L/R common carotid artery
2) L/R subclavian artery
What are the main branches of the common carotid artery?
1) external carotid artery
2) internal carotid artery
where does the common carotid artery divide?
level of superior border of thyroid cartilage
F: external carotid artery
Supplies neck and part of head outside cranial cavity
branches of external carotid artery
1) facial artery
2) maxillary artery
3) superficial temporal artery
F: facial artery
supplies superficial parts of the face (everything except oral, nasal and orbital cavity)
F: maxillary artery
supplies deep parts of the face (oral, nasal and orbital cavity)
F: superficial temporal artery
supplies soft tissue (scalp) outside the skull
what is the largest branch of the external carotid artery?
maxillary artery
Does the internal carotid artery have any branches inside the neck?
no
where does the internal carotid artery enter?
cranial cavity after passing through carotid canal
branches of internal carotid artery
1) middle cerebral artery
2) anterior cerebral artery
F: middle cerebral artery
supplies blood to most of lateral surface of cerebral hemispheres
branches of subclavian artery
1) vertebral artery
F: vertebral artery
supplies blood to spinal cord, medulla and cerebellum
what does the basilar artery arise from?
left and right vertebral arteries join at midline at the base of skull
F: basilar artery
supply pons (brainstem) and cerebellum
what does the posterior cerebral artery arise from?
division of the basilar artery
F: posterior cerebral artery
supply occipital lobes of brain
F: Anterior cerebral artery
supply medial surface of cerebral hemispheres (except occipital lobe)
F: anterior communicating artery
connect L and R anterior cerebral arteries
F: posterior communicating artery
connect internal carotid and posterior cerebral artery
F: circle of Willis
enables brain to receive blood from the other side if the other side “fails”
what makes up the circle of Willis?
- Posterior cerebral artery
- Posterior communicating
- Internal carotid
- Anterior cerebral
- Anterior communicating artery